关键词: 吉林省, 玉米, 单产, 发展历程, 路径

Abstract: As a major grain producing province, Jilin province is the main force to support national food security. Maize is the core industry to ensure the increase of grain yield in Jilin province, while increasing yield per unit area was an inevitable way for insure food security in the future. On the basis of combing the development process of maize yield in Jilin province since the founding of the Peoples Republic of China, this study analyzed the scientific and technological contribution of new varieties for the improvement of maize yield in Jilin province, and made a comparative analysis of maize yield between Jilin province and other provinces abroad. The problems restricting the promotion of maize yield in Jilin province were pointed out. In order to further improve the yield per unit of maize in Jilin province, we should carry out the protection and evaluation work of maize germplasm, strengthen the expansion and improvement of germplasm, carry out basic research on regional maize application, break through key core breeding technology, accelerate intelligent and accurate breeding of major independent new varieties, and innovate green and high yield production technology of black land, which should be benefit for promotion of maize production capacity, take the lead in realizing agricultural modernization, and provide the basis for ensuring national food security.

Key words: Jilin province, maize, yield, development process, path